KR20190069542A - 압전식 음향 변환기 및/또는 역학적 음향 변환기를 작동시키기 위한 증폭기 유닛 및 음향-생성 유닛 - Google Patents

압전식 음향 변환기 및/또는 역학적 음향 변환기를 작동시키기 위한 증폭기 유닛 및 음향-생성 유닛 Download PDF

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Publication number
KR20190069542A
KR20190069542A KR1020197014705A KR20197014705A KR20190069542A KR 20190069542 A KR20190069542 A KR 20190069542A KR 1020197014705 A KR1020197014705 A KR 1020197014705A KR 20197014705 A KR20197014705 A KR 20197014705A KR 20190069542 A KR20190069542 A KR 20190069542A
Authority
KR
South Korea
Prior art keywords
unit
acoustic transducer
amplifier
audio
amplifier unit
Prior art date
Application number
KR1020197014705A
Other languages
English (en)
Korean (ko)
Inventor
안드레아 루스코니 클레리치 벨트라미
페루씨오 보토니
마르쿠스 헨슬러
Original Assignee
유사운드 게엠바하
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유사운드 게엠바하 filed Critical 유사운드 게엠바하
Publication of KR20190069542A publication Critical patent/KR20190069542A/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/007—Control dependent on the supply voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Circuit For Audible Band Transducer (AREA)
KR1020197014705A 2016-10-27 2017-10-25 압전식 음향 변환기 및/또는 역학적 음향 변환기를 작동시키기 위한 증폭기 유닛 및 음향-생성 유닛 KR20190069542A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016120545.1A DE102016120545A1 (de) 2016-10-27 2016-10-27 Verstärkereinheit zum Betreiben eines piezoelektrischen Schallwandlers und/oder eines dynamischen Schallwandlers sowie eine Schallerzeugungseinheit
DE102016120545.1 2016-10-27
PCT/EP2017/077250 WO2018077922A1 (de) 2016-10-27 2017-10-25 Verstärkereinheit zum betreiben eines piezoelektrischen schallwandlers und/oder eines dynamischen schallwandlers sowie eine schallerzeugungseinheit

Publications (1)

Publication Number Publication Date
KR20190069542A true KR20190069542A (ko) 2019-06-19

Family

ID=60268360

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020197014705A KR20190069542A (ko) 2016-10-27 2017-10-25 압전식 음향 변환기 및/또는 역학적 음향 변환기를 작동시키기 위한 증폭기 유닛 및 음향-생성 유닛

Country Status (9)

Country Link
US (1) US10826445B2 (zh)
EP (1) EP3533239B1 (zh)
KR (1) KR20190069542A (zh)
CN (1) CN109891911B (zh)
AU (1) AU2017351687B2 (zh)
CA (1) CA3041930A1 (zh)
DE (1) DE102016120545A1 (zh)
SG (1) SG11201903481RA (zh)
WO (1) WO2018077922A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018116924A1 (de) * 2018-07-12 2020-01-16 USound GmbH Vorrichtung zur Audiosignalverarbeitung für einen piezoelektrischen Lautsprecher

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59125199A (ja) * 1982-12-29 1984-07-19 Matsushita Electric Ind Co Ltd スピ−カシステム
DE10032666B4 (de) * 2000-07-05 2005-06-02 Daimlerchrysler Ag Audiosystem für ein Kraftfahrzeug
US7890284B2 (en) * 2002-06-24 2011-02-15 Analog Devices, Inc. Identification system and method for recognizing any one of a number of different types of devices
US20040017921A1 (en) * 2002-07-26 2004-01-29 Mantovani Jose Ricardo Baddini Electrical impedance based audio compensation in audio devices and methods therefor
JP4152374B2 (ja) * 2004-10-28 2008-09-17 松下電器産業株式会社 スピーカ駆動用増幅装置および音声出力装置
JP2007004600A (ja) * 2005-06-24 2007-01-11 Toshiba Corp 電子機器およびスピーカ駆動制御方法
GB2456005B (en) * 2007-12-28 2013-03-06 Wolfson Ltd Amplifier circuit
US8325931B2 (en) * 2008-05-02 2012-12-04 Bose Corporation Detecting a loudspeaker configuration
CN101646114B (zh) * 2008-08-08 2012-10-17 深圳Tcl新技术有限公司 自动调整电声设备音质的方法及装置
CN102118668B (zh) * 2010-01-06 2014-10-15 宏达国际电子股份有限公司 扬声器系统和扬声器驱动电路
GB2498649B (en) * 2011-08-03 2014-03-26 Blackstar Amplification Ltd Solid state audio power amplifier
EP2637423A1 (en) * 2012-03-06 2013-09-11 Oticon A/S A test device for a speaker module for a listening device
KR101523602B1 (ko) * 2012-08-31 2015-05-29 주식회사 팬택 단말기 및 피에조 스피커를 동작하는 방법
CN204190934U (zh) * 2014-11-24 2015-03-04 青岛歌尔声学科技有限公司 一种输出功率大范围可调的音频电路及声学产品
JP5990627B1 (ja) * 2015-05-31 2016-09-14 オーツェイド株式会社 スピーカ

Also Published As

Publication number Publication date
US10826445B2 (en) 2020-11-03
EP3533239B1 (de) 2021-01-27
EP3533239A1 (de) 2019-09-04
AU2017351687A1 (en) 2019-06-13
DE102016120545A1 (de) 2018-05-03
CN109891911A (zh) 2019-06-14
WO2018077922A1 (de) 2018-05-03
US20190253026A1 (en) 2019-08-15
SG11201903481RA (en) 2019-05-30
AU2017351687B2 (en) 2022-01-27
CA3041930A1 (en) 2018-05-03
CN109891911B (zh) 2021-11-02

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E601 Decision to refuse application